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Table Of Contents

Table of Contents

VCT 49xxI

Volume 1: General Description

General Description

1. Introduction

The VCT 49xxI is an IC family of high-quality single-

chip TV processors. Modular design and deep-submi-

cron technology allow the economic integration of fea-

tures in all classes of single-scan TV sets. The

VCT 49xxI family is based on functional blocks con-

tained and approved in existing products like

DRX 396xA, MSP 34x5G, VSP 94x7B, DDP 3315C,

and SDA 55xx.

Each member of the family contains the entire IF,

audio, video, display, and deflection processing for 4:3

and 16:9 50/60-Hz mono and stereo TV sets. The inte-

grated microcontroller is supported by a powerful OSD

generator with integrated Teletext & CC acquisition

including on-chip page memory.

Video & Sound IF

DRX 396xA

Audio Processing

MSP 34x5G

Video Processing

VSP 94x7B

Display & Deflection

DDP 3315C

Control, OSD, Text

SDA 55xx

Fig. 1–1: Single-chip VCT 49xxI

1-4

1.1. Features

The VCT 49xxI family offers a rich feature set, cover-

ing the whole range of state-of-the-art 50/60-Hz TV

applications.

– PSSDIP88-1/-2 package

– PMQFP144-2 package

– Submicron CMOS technology

– Low-power standby mode

– Single 20.25-MHz reference crystal

– 8-bit 8051 instruction set compatible CPU

– Up to 256 kB on-chip program ROM

– WST, PDC, VPS, and WSS acquisition

– Closed Caption and V-chip acquisition

– Up to 10 pages on-chip teletext memory

– Multi-standard QSS IF processing with single SAW

– FM Radio and RDS with standard TV tuner

– TV-sound demodulation:

– Baseband sound processing for loudspeaker chan-

VCT 49xyI

– CVBS, S-VHS, YC

– 4H adaptive comb filter (PAL/NTSC)

– multi-standard color decoder (PAL/NTSC/SECAM)

– Nonlinear horizontal scaling "panorama vision"

– Luma and chroma transient improvement (LTI, CTI)

– Non-linear color space enhancement (NCE)

– Dynamic black level expander (BLE)

– Scan velocity modulation output

– Soft start/stop of H-drive

– Vertical angle and bow correction

– Average and peak beam current limiter

– Nonlinear and dynamic EHT compensation

– Black switch off procedure (BSO)

Dec. 6, 2002; 6251-573-1-1AI